Parathyroid hormone and the beta hemoglobin gene cluster, which are closely linked on human chromosome 11p15, were localized to bovine syntenic group (U7) with the gene for catalase by the use of bovine x hamster hybrid somatic cells. Restriction fragment length polymorphisms (RFLPs) were followed through informative pedigrees to determine a linkage map distance of 15.6 +/- 5.4 cM between the parathyroid hormone and hemoglobin genes. Allelic frequencies of the DNA fragment were compared in a small sampling of cattle from five different breeds.
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